/*
 * AOYI LAB Design System v1.0
 * 唯一视觉契约：React 与旧模板共用 --hws-* 语义令牌。
 * Apple 的简洁是优先级清晰，不是隐藏业务能力。内容层保持实底，透明材质只用于导航、浮层与上下文控件。
 */

:root,
:root[data-theme="light"] {
    color-scheme: light;

    /* Semantic color */
    --hws-background: oklch(0.965 0.004 255);
    --hws-surface: oklch(0.995 0.002 255);
    --hws-surface-raised: oklch(1 0 0);
    --hws-surface-subtle: oklch(0.945 0.006 255);
    --hws-foreground: oklch(0.205 0.008 255);
    --hws-foreground-secondary: oklch(0.31 0.012 255);
    --hws-muted-foreground: oklch(0.40 0.012 255);
    --hws-border: oklch(0.86 0.007 255);
    --hws-border-strong: oklch(0.76 0.012 255);
    --hws-primary: oklch(0.55 0.20 252);
    --hws-primary-hover: oklch(0.50 0.20 252);
    --hws-primary-foreground: oklch(0.99 0.002 255);
    --hws-accent: oklch(0.55 0.20 252);
    --hws-accent-text: oklch(0.46 0.18 252);
    --hws-accent-foreground: oklch(0.99 0.002 255);
    --hws-accent-subtle: oklch(0.94 0.035 252);
    --hws-success: oklch(0.49 0.12 150);
    --hws-warning: oklch(0.55 0.13 72);
    --hws-danger: oklch(0.52 0.19 28);
    --hws-info: oklch(0.55 0.16 245);
    --hws-focus: oklch(0.57 0.20 252);
    --hws-scrim: oklch(0.08 0.006 255 / 0.84);
    --hws-material-chrome: color-mix(in oklab, var(--hws-surface-raised) 78%, transparent);
    --hws-material-context: color-mix(in oklab, var(--hws-surface-raised) 90%, transparent);

    /* Typography: 4 sizes x 3 weights */
    --hws-font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --hws-font-mono: "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", monospace;
    --hws-text-2xl: 24px;
    --hws-text-lg: 18px;
    --hws-text-sm: 14px;
    --hws-text-xs: 12px;
    --hws-leading-2xl: 30px;
    --hws-leading-lg: 24px;
    --hws-leading-sm: 22px;
    --hws-leading-xs: 18px;
    --hws-leading-tight: 1.25;
    --hws-leading-normal: var(--hws-leading-sm);
    --hws-weight-normal: 400;
    --hws-weight-medium: 500;
    --hws-weight-semibold: 600;

    /* Spacing: 4px base */
    --hws-space-1: 4px;
    --hws-space-2: 8px;
    --hws-space-3: 12px;
    --hws-space-4: 16px;
    --hws-space-6: 24px;
    --hws-space-8: 32px;
    --hws-space-10: 40px;
    --hws-space-16: 64px;
    --hws-space-24: 96px;

    /* Shape */
    --hws-radius-sm: 6px;
    --hws-radius-md: 8px;
    --hws-radius-lg: 12px;
    --hws-radius-xl: 16px;
    --hws-radius-full: 9999px;

    /* Elevation is reserved for floating layers */
    --hws-shadow-sm: 0 1px 3px color-mix(in oklab, var(--hws-foreground) 10%, transparent);
    --hws-shadow-md: 0 6px 18px color-mix(in oklab, var(--hws-foreground) 12%, transparent);
    --hws-shadow-lg: 0 18px 48px color-mix(in oklab, var(--hws-foreground) 16%, transparent);

    /* Motion */
    --hws-duration-fast: 120ms;
    --hws-duration-base: 180ms;
    --hws-duration-slow: 280ms;
    --hws-motion-fast: 180ms;
    --hws-motion-base: 220ms;
    --hws-motion-emphasis: 240ms;
    --hws-motion-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
    --hws-ease-standard: cubic-bezier(0.2, 0, 0, 1);
    --hws-ease-exit: cubic-bezier(0.4, 0, 1, 1);

    /* Layout */
    --hws-page-max: 1440px;
    --hws-workbench-max: 1920px;
    --hws-page-gutter: 16px;
    --hws-header-height: 56px;
    --hws-control-height: 40px;
    --hws-z-sticky: 100;
    --hws-z-overlay: 400;
    --hws-z-toast: 600;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --hws-background: oklch(0.15 0.008 255);
    --hws-surface: oklch(0.205 0.010 255);
    --hws-surface-raised: oklch(0.245 0.012 255);
    --hws-surface-subtle: oklch(0.18 0.010 255);
    --hws-foreground: oklch(0.955 0.004 255);
    --hws-foreground-secondary: oklch(0.84 0.008 255);
    --hws-muted-foreground: oklch(0.74 0.012 255);
    --hws-border: oklch(0.34 0.014 255);
    --hws-border-strong: oklch(0.44 0.018 255);
    --hws-primary: oklch(0.68 0.17 252);
    --hws-primary-hover: oklch(0.73 0.15 252);
    --hws-primary-foreground: oklch(0.18 0.008 255);
    --hws-accent: oklch(0.68 0.17 252);
    --hws-accent-text: oklch(0.78 0.14 252);
    --hws-accent-foreground: oklch(0.18 0.008 255);
    --hws-accent-subtle: oklch(0.30 0.055 252);
    --hws-success: oklch(0.72 0.11 150);
    --hws-warning: oklch(0.78 0.12 78);
    --hws-danger: oklch(0.70 0.16 28);
    --hws-info: oklch(0.72 0.12 245);
    --hws-focus: oklch(0.72 0.15 252);
    --hws-scrim: oklch(0.05 0.006 255 / 0.88);
    --hws-material-chrome: color-mix(in oklab, var(--hws-surface) 76%, transparent);
    --hws-material-context: color-mix(in oklab, var(--hws-surface-raised) 88%, transparent);
}

html {
    background: var(--hws-background);
}

body,
body.frontend-spa-shell {
    color: var(--hws-foreground);
    background: var(--hws-background);
    font-family: var(--hws-font-sans);
    font-size: var(--hws-text-sm);
    line-height: var(--hws-leading-normal);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 2px solid var(--hws-focus);
    outline-offset: 2px;
}

::selection {
    background: var(--hws-accent-subtle);
    color: var(--hws-foreground);
}

/* Event-bound generation feedback. Every class is removed after one animation. */
.hws-motion-progress-value {
    min-width: 3.5ch;
    color: var(--hws-foreground);
    font-variant-numeric: tabular-nums;
    font-weight: var(--hws-weight-semibold);
    text-align: right;
}

.hws-motion-progress-value number-flow {
    --number-flow-char-height: 1em;
    font: inherit;
}

.hws-spec-stamp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 0 var(--hws-space-3);
    border: 1px solid color-mix(in oklab, var(--hws-success) 48%, var(--hws-border));
    border-radius: var(--hws-radius-full);
    color: var(--hws-success);
    background: color-mix(in oklab, var(--hws-success) 8%, var(--hws-surface));
    font-size: var(--hws-text-xs);
    font-weight: var(--hws-weight-semibold);
    line-height: var(--hws-leading-xs);
    white-space: nowrap;
}

.hws-spec-stamp[hidden] { display: none; }

.chat-action-row > .hws-spec-stamp,
.chat-batch-action-row > .hws-spec-stamp,
.mc-output-settings > .hws-spec-stamp {
    grid-column: 1 / -1;
    justify-self: start;
}

.chat-result-progress-head > .hws-motion-progress-value {
    justify-self: end;
}

.hws-orb-slot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex: none;
    align-self: center;
}

.hws-orb-slot[hidden] { display: none; }

.hws-thinking-orb {
    display: block;
    width: 20px;
    height: 20px;
}

.hws-material-committed { animation: hws-material-commit var(--hws-motion-base) var(--hws-motion-ease) both; }
.hws-task-pulse-once { animation: hws-task-pulse var(--hws-motion-base) var(--hws-motion-ease) both; }
.hws-task-progress-changed { animation: hws-task-progress var(--hws-motion-fast) var(--hws-motion-ease) both; }
.hws-task-settled { animation: hws-task-settle var(--hws-motion-emphasis) var(--hws-motion-ease) both; }
.hws-spec-stamped { animation: hws-spec-stamp var(--hws-motion-emphasis) var(--hws-motion-ease) both; }

@keyframes hws-material-commit {
    from { opacity: 0.72; transform: translateY(4px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes hws-task-pulse {
    0% { opacity: 0.72; transform: scale(0.99); }
    56% { opacity: 1; transform: scale(1.008); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes hws-task-progress {
    from { opacity: 0.76; transform: translateY(2px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes hws-task-settle {
    0% { opacity: 0.78; transform: scale(0.992); }
    64% { opacity: 1; transform: scale(1.006); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes hws-spec-stamp {
    from { opacity: 0; transform: translateY(-4px) rotate(-1deg) scale(1.04); }
    to { opacity: 1; transform: translateY(0) rotate(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    .hws-material-committed,
    .hws-task-pulse-once,
    .hws-task-progress-changed,
    .hws-task-settled,
    .hws-spec-stamped {
        animation: none !important;
        transform: none !important;
    }
}

/* Shared application chrome */
.navbar-minimal {
    width: min(calc(100% - var(--hws-page-gutter) - var(--hws-page-gutter)), var(--hws-page-max));
    margin: var(--hws-space-4) auto 0;
    top: var(--hws-space-3);
    border: 1px solid color-mix(in oklab, var(--hws-border-strong) 72%, transparent);
    border-radius: var(--hws-radius-xl);
    background: var(--hws-material-chrome);
    box-shadow: var(--hws-shadow-md);
    backdrop-filter: blur(22px) saturate(160%);
    -webkit-backdrop-filter: blur(22px) saturate(160%);
}

.navbar-container {
    min-height: var(--hws-header-height);
    gap: var(--hws-space-2);
    padding: var(--hws-space-2) var(--hws-space-3);
}

.brand-mark {
    width: 38px;
    height: 38px;
    display: inline-flex;
    flex: 0 0 38px;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 10px;
    background: var(--hws-foreground);
    color: var(--hws-background);
    box-shadow: none;
}

.brand-mark-symbol {
    width: 22px;
    height: 22px;
    display: block;
}

.brand-text { font-size: var(--hws-text-sm); font-weight: var(--hws-weight-semibold); letter-spacing: -.01em; }
.brand-kicker { font-size: var(--hws-text-xs); font-weight: var(--hws-weight-medium); letter-spacing: .1em; }
.navbar-nav-minimal { gap: var(--hws-space-1); }
.nav-link-minimal {
    min-width: 58px;
    min-height: 38px;
    padding: var(--hws-space-1) var(--hws-space-2);
    border-radius: var(--hws-radius-md);
    color: var(--hws-muted-foreground);
    font-size: var(--hws-text-xs);
    font-weight: var(--hws-weight-medium);
    transition: color var(--hws-duration-fast) var(--hws-ease-standard), background var(--hws-duration-fast) var(--hws-ease-standard);
}

.nav-link-minimal:hover,
.nav-link-minimal.active,
[data-theme="light"] .nav-link-minimal:hover,
[data-theme="light"] .nav-link-minimal.active,
html[data-theme="dark"] body .nav-link-minimal:hover,
html[data-theme="dark"] body .nav-link-minimal.active {
    border-color: transparent;
    background: var(--hws-surface-subtle);
    color: var(--hws-foreground);
    box-shadow: none;
}

.nav-link-minimal.active { box-shadow: inset 0 -2px 0 var(--hws-accent); }

@media (max-width: 760px) {
    .navbar-nav-minimal {
        width: auto;
        flex: 1 1 auto;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .navbar-nav-minimal[data-nav-count="5"] { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .navbar-nav-minimal[data-nav-count="7"] { grid-template-columns: repeat(7, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
    .navbar-minimal {
        width: calc(100% - 24px);
        margin-top: var(--hws-space-3);
    }

    .navbar-container {
        min-height: var(--hws-header-height);
        align-items: center;
        flex-direction: row;
        padding: var(--hws-space-2);
    }

    .navbar-brand-minimal {
        display: none;
    }

    .navbar-nav-minimal {
        width: auto;
        flex: 1 1 auto;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 2px;
    }

    .navbar-nav-minimal[data-nav-count="5"] {
        grid-template-columns: repeat(5, minmax(56px, 1fr));
    }

    .navbar-nav-minimal[data-nav-count="7"] {
        grid-template-columns: repeat(4, minmax(64px, 1fr));
    }

    .nav-link-minimal {
        min-width: 0;
        min-height: 44px;
        padding: var(--hws-space-1);
    }

    .nav-icon {
        display: none;
    }

}

/* Legacy compatibility: one-way mapping, no duplicate source of truth. */
:root,
:root[data-theme="light"],
:root[data-theme="dark"] {
    --apple-bg: var(--hws-background);
    --apple-bg-soft: var(--hws-surface-subtle);
    --apple-bg-panel: var(--hws-surface);
    --apple-bg-panel-2: var(--hws-surface-raised);
    --apple-bg-light: var(--hws-surface-raised);
    --apple-text: var(--hws-foreground-secondary);
    --apple-text-strong: var(--hws-foreground);
    --apple-text-dark: var(--hws-accent-foreground);
    --apple-text-muted: var(--hws-muted-foreground);
    --apple-text-soft: var(--hws-muted-foreground);
    --apple-line: var(--hws-border);
    --apple-line-strong: var(--hws-border-strong);
    --apple-accent: var(--hws-accent);
    --apple-accent-strong: var(--hws-focus);
    --apple-accent-soft: var(--hws-accent-subtle);
    --apple-danger: var(--hws-danger);
    --apple-success: var(--hws-success);
    --apple-warning: var(--hws-warning);
    --apple-radius-xs: var(--hws-radius-sm);
    --apple-radius-sm: var(--hws-radius-md);
    --apple-radius-md: var(--hws-radius-lg);
    --apple-radius-lg: var(--hws-radius-xl);
    --apple-shadow-1: var(--hws-shadow-sm);
    --apple-shadow-2: var(--hws-shadow-md);
    --apple-page-width: var(--hws-page-max);
    --apple-font-body: var(--hws-font-sans);
    --apple-font-display: var(--hws-font-sans);
    --apple-material-canvas: var(--hws-background);
    --apple-material-shell: var(--hws-surface-subtle);
    --apple-material-paper: var(--hws-surface);
    --apple-material-cream: var(--hws-surface-subtle);
    --apple-material-blush: var(--hws-accent-subtle);
    --apple-material-blue: var(--hws-accent);
    --apple-material-blue-deep: var(--hws-focus);
    --apple-material-ink: var(--hws-foreground);
}

/* Grounded product layer: neutral floor, legible plates, and shared controls. */
body,
body.frontend-spa-shell,
body.app-theme-shell {
    background: var(--hws-background) !important;
    color: var(--hws-foreground) !important;
    letter-spacing: 0;
    transform: none !important;
    -webkit-transform: none !important;
    will-change: auto !important;
}

.container,
.app-shell-container,
.app-shell-container:has(.workspace-apple-hero),
.app-shell-container:has(.chat-shell) {
    width: min(calc(100% - 24px), var(--hws-page-max));
    max-width: var(--hws-page-max);
    margin: var(--hws-space-3) auto var(--hws-space-8);
    padding: var(--hws-space-4) 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.panel-card,
.apple-step-card,
.apple-info-card,
.engine-config-block,
.workspace-gallery-panel,
.toolbox-panel,
.chat-input-panel,
.chat-generate-panel,
.chat-control-panel {
    border-color: var(--hws-border) !important;
    border-radius: var(--hws-radius-lg) !important;
    background: var(--hws-surface) !important;
    box-shadow: none !important;
}

.chat-board-section,
.homewear-task-card,
.apple-control-group,
.engine-option,
.toolbox-switch-card,
.toolbox-progress-card,
.toolbox-safety-card,
.workspace-gallery-toolbar,
.workspace-empty-block,
.chat-result-empty,
.chat-progress-compact {
    border-color: var(--hws-border) !important;
    border-radius: var(--hws-radius-md) !important;
    background: var(--hws-surface-subtle) !important;
    box-shadow: none !important;
}

.theme-toggle-minimal,
[data-theme="light"] .theme-toggle-minimal {
    position: static !important;
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
    flex: 0 0 38px !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    margin: 0 !important;
    border: 1px solid var(--hws-border) !important;
    border-radius: 10px !important;
    background: var(--hws-material-context) !important;
    box-shadow: none !important;
    backdrop-filter: blur(16px) saturate(150%) !important;
    -webkit-backdrop-filter: blur(16px) saturate(150%) !important;
}

.apple-primary-btn,
.apple-primary-btn-compact {
    border-color: var(--hws-primary) !important;
    background: var(--hws-primary) !important;
    color: var(--hws-primary-foreground) !important;
    box-shadow: none !important;
}

.apple-primary-btn:hover:not(:disabled),
.apple-primary-btn-compact:hover:not(:disabled) {
    border-color: var(--hws-primary-hover) !important;
    background: var(--hws-primary-hover) !important;
    transform: translateY(-1px) !important;
}

.apple-primary-btn:active:not(:disabled),
.apple-primary-btn-compact:active:not(:disabled),
.apple-secondary-btn:active:not(:disabled),
.nav-link-minimal:active,
.theme-toggle-minimal:active {
    transform: scale(.97) !important;
    transition-duration: var(--hws-duration-fast) !important;
}

.workspace-command-hero,
.workspace-apple-hero {
    grid-template-columns: minmax(280px, .78fr) minmax(0, 1.22fr) !important;
    gap: var(--hws-space-4) !important;
    align-items: start !important;
}

.workspace-command-copy,
.workspace-apple-copy {
    min-height: 0 !important;
    padding: var(--hws-space-6) !important;
    border: 1px solid var(--hws-border-strong) !important;
    border-radius: var(--hws-radius-xl) !important;
    background: var(--hws-surface) !important;
    box-shadow: none !important;
}

.workspace-command-summary,
.workspace-apple-summary {
    margin-top: var(--hws-space-4) !important;
}

.workspace-apple-spotlight,
.workspace-spotlight-card {
    min-height: 0 !important;
}

.workspace-apple-spotlight .workspace-spotlight-media,
.workspace-apple-spotlight .workspace-spotlight-placeholder {
    min-height: 280px !important;
    height: 280px !important;
    background: var(--hws-background) !important;
}

.workspace-spotlight-image {
    object-fit: contain !important;
    background: var(--hws-background) !important;
}

.workspace-apple-title {
    max-width: none !important;
    font-size: 28px !important;
    line-height: 1.2 !important;
    letter-spacing: -.025em !important;
}

.workspace-spotlight-card,
.workspace-apple-spotlight {
    border-color: var(--hws-border-strong) !important;
    border-radius: var(--hws-radius-xl) !important;
    background: var(--hws-surface) !important;
    box-shadow: none !important;
}

.workspace-spotlight-media:focus-within {
    box-shadow: inset 0 0 0 2px var(--hws-focus) !important;
}

.workspace-spotlight-preview:focus-visible {
    outline: 0 !important;
}

.workspace-gallery-card {
    border-radius: var(--hws-radius-xl) !important;
}

@media (max-width: 760px) {
    .workspace-command-hero,
    .workspace-apple-hero {
        grid-template-columns: 1fr !important;
    }
}

/* Shared prompt creation: keep every prompt-generating task on the same clear
 * hierarchy as model creation. The progress surface remains visible at idle,
 * running and completed states so it never reads as a missing feature. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
    gap: 8px;
    min-height: 0;
    padding: 10px;
    overflow: visible;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench .chat-brief-head,
html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench > .chat-inline-hint {
    grid-column: 1;
    grid-row: auto;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench .chat-brief-head {
    min-height: 24px;
    height: auto;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea {
    width: 100%;
    min-height: 62px;
    height: 62px;
    max-height: 120px;
    padding: 8px 9px;
    font-size: 12px;
    line-height: 19px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    margin: 0;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-enhance-btn, .chat-write-prompt-btn) {
    min-width: 0;
    min-height: 40px !important;
    height: 40px !important;
    border-radius: var(--hws-radius-md) !important;
    font-size: 13px !important;
    line-height: 18px !important;
    font-weight: var(--hws-weight-semibold) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn {
    width: 100%;
    padding-inline: 16px !important;
    border-color: var(--hws-accent) !important;
    background: var(--hws-accent) !important;
    color: var(--hws-accent-foreground) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn:disabled {
    border-color: var(--hws-border-strong) !important;
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-muted-foreground) !important;
    opacity: 1;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-write-prompt-btn {
    padding-inline: 13px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress {
    display: grid;
    gap: 7px;
    margin: 0;
    padding: 9px 10px;
    border: 1px solid color-mix(in oklab, var(--hws-accent) 30%, var(--hws-border));
    border-radius: var(--hws-radius-md);
    background: color-mix(in oklab, var(--hws-accent) 7%, var(--hws-surface));
    font-size: 12px;
    line-height: 16px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[hidden] {
    display: none;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-head strong {
    color: var(--hws-foreground);
    font-size: 12px;
    font-weight: var(--hws-weight-semibold) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-head output {
    color: var(--hws-accent);
    font-variant-numeric: tabular-nums;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-bar {
    height: 5px;
    overflow: hidden;
    border-radius: var(--hws-radius-full);
    background: color-mix(in oklab, var(--hws-border-strong) 76%, transparent);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[data-status="success"] {
    border-color: color-mix(in oklab, var(--hws-success) 34%, var(--hws-border));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[data-status="success"] .chat-prompt-progress-bar > span {
    background: var(--hws-success);
}

/* Shared result file actions: one calm, full-width row for single and batch
 * results instead of adding more micro-pills to the metadata row. */
html[data-theme] body :is(
    #chatSingleShell.chat-desktop-workbench,
    #chatBatchShell
) .chat-result-file-actions {
    padding: var(--hws-space-1) 6px 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-top: 1px solid color-mix(in oklab, var(--hws-border) 68%, transparent);
    background: color-mix(in oklab, var(--hws-surface-subtle) 58%, var(--hws-surface));
}

html[data-theme] body :is(
    #chatSingleShell.chat-desktop-workbench,
    #chatBatchShell
) .chat-result-file-actions > :is(button, a) {
    position: static;
    flex: 1 1 0;
    min-width: 0;
    min-height: 30px;
    height: 30px;
    padding: 0 var(--hws-space-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid color-mix(in oklab, var(--hws-border) 78%, transparent);
    border-radius: var(--hws-radius-md);
    background: color-mix(in oklab, var(--hws-surface-raised) 74%, transparent);
    color: var(--hws-foreground);
    font: inherit;
    font-size: var(--hws-text-xs);
    font-weight: var(--hws-weight-medium);
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    box-shadow: none;
    transform: none;
}

html[data-theme] body :is(
    #chatSingleShell.chat-desktop-workbench,
    #chatBatchShell
) .chat-result-file-actions svg,
html[data-theme] body .chat-inline-result-file-actions svg {
    width: 13px;
    height: 13px;
    flex: 0 0 auto;
    color: var(--hws-muted-foreground);
}

html[data-theme] body :is(
    #chatSingleShell.chat-desktop-workbench,
    #chatBatchShell
) .chat-result-file-actions > :is(button, a):hover {
    border-color: color-mix(in oklab, var(--hws-accent) 24%, var(--hws-border));
    background: color-mix(in oklab, var(--hws-accent) 7%, var(--hws-surface-raised));
    color: var(--hws-accent);
}

html[data-theme] body :is(
    #chatSingleShell.chat-desktop-workbench,
    #chatBatchShell
) .chat-result-file-actions > :is(button, a):focus-visible {
    outline: 2px solid var(--hws-accent);
    outline-offset: 1px;
}

@media (max-width: 780px), (pointer: coarse) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-enhance-btn, .chat-write-prompt-btn),
    html[data-theme] body :is(#chatSingleShell.chat-desktop-workbench, #chatBatchShell) .chat-result-file-actions > :is(button, a) {
        min-height: 44px !important;
        height: 44px !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-bar > span,
    html[data-theme] body :is(#chatSingleShell.chat-desktop-workbench, #chatBatchShell) .chat-result-file-actions > :is(button, a) {
        transition: none !important;
    }
}

@media (min-width: 1181px) {
    #chatSingleShell .homewear-task-switch {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.apple-input,
.apple-select,
.apple-textarea,
input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
    border-color: var(--hws-border-strong) !important;
    border-radius: var(--hws-radius-md) !important;
    background: var(--hws-surface-raised) !important;
    color: var(--hws-foreground) !important;
    box-shadow: none !important;
}

.apple-primary-btn:disabled,
.apple-primary-btn-compact:disabled {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-muted-foreground) !important;
    opacity: 1 !important;
    cursor: not-allowed !important;
}

/* Final rendering guard.
 * The two legacy layout sheets still own geometry for several production
 * screens. Their historical material colors must never outrank the sole
 * Apple semantic contract declared above.
 */
html[data-theme] body .navbar-minimal {
    border-color: color-mix(in oklab, var(--hws-border-strong) 72%, transparent) !important;
    background: var(--hws-material-chrome) !important;
    box-shadow: var(--hws-shadow-md) !important;
}

html[data-theme] body .brand-mark {
    border: 0 !important;
    background: var(--hws-foreground) !important;
    color: var(--hws-background) !important;
    box-shadow: none !important;
}

html[data-theme] body .theme-toggle-minimal {
    border-color: var(--hws-border) !important;
    background: var(--hws-material-context) !important;
    color: var(--hws-foreground) !important;
    box-shadow: none !important;
}

html[data-theme] body .apple-secondary-btn,
html[data-theme] body .apple-upload-btn,
html[data-theme] body .toolbox-switch-toggle,
html[data-theme] body .homewear-task-btn,
html[data-theme] body .workspace-layout-btn,
html[data-theme] body .workspace-gallery-date-clear {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface-raised) !important;
    color: var(--hws-foreground) !important;
    box-shadow: none !important;
}

html[data-theme] body .apple-secondary-btn:hover:not(:disabled),
html[data-theme] body .apple-upload-btn:hover:not(:disabled),
html[data-theme] body .toolbox-switch-toggle:hover:not(:disabled),
html[data-theme] body .homewear-task-btn:hover:not(:disabled),
html[data-theme] body .workspace-layout-btn:hover:not(:disabled),
html[data-theme] body .workspace-gallery-date-clear:hover:not(:disabled) {
    border-color: var(--hws-border-strong) !important;
    background: var(--hws-surface-subtle) !important;
}

html[data-theme] body .apple-clear-btn {
    border-color: transparent !important;
    background: transparent !important;
    color: var(--hws-foreground-secondary) !important;
    box-shadow: none !important;
}

html[data-theme] body .apple-clear-btn:hover:not(:disabled) {
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-foreground) !important;
}

html[data-theme] body .homewear-task-btn.is-active,
html[data-theme] body .chat-mode-btn.is-active,
html[data-theme] body .chat-aspect-option.is-selected,
html[data-theme] body .chat-resolution-option.is-selected,
html[data-theme] body .workspace-layout-btn.is-active {
    border-color: color-mix(in oklab, var(--hws-accent) 58%, var(--hws-border)) !important;
    background: var(--hws-accent-subtle) !important;
    color: var(--hws-accent-text) !important;
}

html[data-theme] body .apple-upload-content,
html[data-theme] body .chat-prompt-workbench,
html[data-theme] body .chat-final-prompt-panel,
html[data-theme] body .chat-aspect-option,
html[data-theme] body .chat-stepper-control,
html[data-theme] body .workspace-gallery-layouts,
html[data-theme] body .workspace-spotlight-badge,
html[data-theme] body .workspace-mini-chip {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-foreground-secondary) !important;
    box-shadow: none !important;
}

html[data-theme] body .chat-mode-switch,
html[data-theme] body .chat-batch-check {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface) !important;
    color: var(--hws-foreground) !important;
}

html[data-theme] body .chat-control-tip {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-muted-foreground) !important;
}

html[data-theme] body .chat-control-tip-dot {
    border-color: transparent !important;
    background: var(--hws-info) !important;
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--hws-info) 14%, transparent) !important;
}

/* Chat typography ladder: four clear sizes and three useful weights.
 * Legacy sheets contain many near-identical rem values and heavy custom
 * weights. Normalize the production surface without changing its structure.
 */
html[data-theme] body:has(.chat-shell) .chat-page-hero-minimal .page-title {
    font-size: var(--hws-text-2xl) !important;
    font-weight: var(--hws-weight-semibold) !important;
    line-height: var(--hws-leading-2xl) !important;
    letter-spacing: -.025em !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .workspace-section-title,
    .batch-advanced-sheet-head h3,
    .chat-color-compare-head h3,
    .chat-result-detail-head h3
) {
    font-size: var(--hws-text-lg) !important;
    font-weight: var(--hws-weight-semibold) !important;
    line-height: var(--hws-leading-lg) !important;
    letter-spacing: -.015em !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .chat-control-label,
    .homewear-task-head strong,
    .homewear-mode-panel-head strong,
    .homewear-mode-head strong,
    .chat-advanced-group-heading > strong,
    .chat-final-prompt-summary-title,
    .chat-disclosure summary,
    .chat-task-details summary,
    .chat-board-title,
    .chat-result-empty span,
    .batch-advanced-trigger span,
    .batch-prompt-mode-head strong,
    .chat-result-progress-head strong,
    .chat-prompt-progress-head output,
    .chat-color-correction-strength output,
    .batch-progress-lane-head strong,
    .chat-progress-compact-row strong,
    .chat-burst-count,
    .chat-batch-save-summary strong,
    .chat-color-compare-puzzle figcaption,
    .chat-result-detail-note strong,
    .chat-result-detail-sources > strong
) {
    font-size: var(--hws-text-sm) !important;
    font-weight: var(--hws-weight-semibold) !important;
    line-height: var(--hws-leading-sm) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .homewear-task-btn strong,
    .homewear-mode-option strong,
    .homewear-mode-switch label,
    .chat-aspect-option b,
    .chat-resolution-option,
    .chat-stepper-control .chat-burst-input,
    .chat-action-row .apple-primary-btn,
    .chat-action-row .apple-secondary-btn,
    .chat-action-row .apple-clear-btn,
    .chat-mini-btn,
    .chat-write-prompt-btn,
    .chat-mode-btn,
    .chat-enhance-btn,
    .chat-upload-action-btn,
    .chat-copy-prompt-btn,
    .chat-prompt-fallback-action,
    .desktop-directory-button,
    .batch-prompt-mode-switch label,
    .chat-batch-add-detail,
    .chat-color-compare-tabs button,
    .chat-color-compare-export,
    .chat-result-detail-body dd,
    .chat-result-detail-source-card span,
    .chat-batch-image strong
) {
    font-size: var(--hws-text-sm) !important;
    font-weight: var(--hws-weight-medium) !important;
    line-height: var(--hws-leading-sm) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .apple-label,
    .apple-label-sm,
    .chat-batch-field > span,
    .chat-material-counter,
    .chat-result-total,
    .homewear-mode-panel-head > span,
    .homewear-role-grid span,
    .chat-color-correction-strength label,
    .chat-result-progress-head span,
    .chat-prompt-progress-head strong,
    .batch-progress-lane-head span,
    .chat-progress-compact-row span,
    .chat-prompt-source-badge,
    .batch-filter-row button,
    .batch-secondary-actions summary,
    .chat-batch-save-summary span,
    .chat-batch-match-index,
    .chat-batch-prompt-preview > span,
    .chat-batch-prompt-preview p b,
    .chat-color-compare-label,
    .chat-result-detail-body dt,
    .chat-result-detail-prompt strong,
    .batch-prompt-editor label,
    .chat-history-drawer-meta,
    .chat-history-mini-status,
    .chat-history-mini-detail span,
    .chat-upload-card .apple-upload-text,
    .chat-upload-card.has-image .apple-upload-btn span::after,
    .chat-upload-card.has-image .chat-upload-history-btn::after
) {
    font-size: var(--hws-text-xs) !important;
    font-weight: var(--hws-weight-medium) !important;
    line-height: var(--hws-leading-xs) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .apple-input,
    .apple-select,
    .apple-textarea,
    .chat-inline-hint,
    .chat-result-empty small,
    .chat-batch-check > span,
    .batch-action-hint,
    .chat-batch-prompt-preview p,
    .chat-batch-prompt-preview em,
    .batch-prompt-editor-error,
    .chat-batch-unmatched,
    .chat-history-mini-prompt,
    .chat-result-detail-prompt p
) {
    font-size: var(--hws-text-sm) !important;
    font-weight: var(--hws-weight-normal) !important;
    line-height: var(--hws-leading-sm) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .batch-prompt-mode-status,
    .chat-batch-match-status
) {
    font-size: var(--hws-text-xs) !important;
    font-weight: var(--hws-weight-semibold) !important;
    line-height: var(--hws-leading-xs) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) :is(
    .chat-context-help > p,
    .homewear-mode-option span,
    .homewear-mode-help,
    .chat-upload-stage-hint,
    .chat-prompt-result,
    .batch-advanced-trigger small,
    .chat-progress-compact-note,
    .chat-color-compare-head p,
    .chat-result-detail-note span,
    .chat-result-detail-source-card small,
    .chat-result-detail-source-card em,
    .chat-history-mini-time,
    .chat-batch-image span,
    .chat-batch-image small
) {
    font-size: var(--hws-text-xs) !important;
    font-weight: var(--hws-weight-normal) !important;
    line-height: var(--hws-leading-xs) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) .chat-context-help > summary {
    font-size: var(--hws-text-xs) !important;
    font-weight: var(--hws-weight-semibold) !important;
    letter-spacing: 0 !important;
}

html[data-theme] body:has(.chat-shell) .chat-batch-check {
    min-height: 40px;
}

html[data-theme] body:has(.chat-shell) .chat-batch-check input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

html[data-theme] body #chatBatchShell .chat-batch-upscale-risk {
    display: none;
    margin-top: var(--hws-space-2);
    color: var(--hws-warning) !important;
}

html[data-theme] body #chatBatchShell .chat-batch-check:has(#batchUpscaleEnabled:checked) + .chat-batch-upscale-risk {
    display: block;
}

/* Single-generation composition contract.
 * Preparation owns the visual focus until a task starts, fails, or returns
 * results. Keep these rules scoped to the single workbench so the batch
 * surface and the legacy business state machine remain untouched.
 */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-card {
    gap: var(--hws-space-3) !important;
    padding: 0 0 var(--hws-space-4) !important;
    border: 0 !important;
    border-bottom: 1px solid var(--hws-border) !important;
    border-radius: 0 !important;
    background: transparent !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-head {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    min-height: 24px;
    color: var(--hws-foreground);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-heading-stack {
    display: grid;
    gap: var(--hws-space-1);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-head strong {
    font-size: var(--hws-text-lg) !important;
    font-weight: var(--hws-weight-semibold) !important;
    line-height: var(--hws-leading-lg) !important;
    letter-spacing: -.01em !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-btn {
    min-height: 42px !important;
    padding: var(--hws-space-2) var(--hws-space-1) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-btn strong,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option strong,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-text {
    font-size: var(--hws-text-sm) !important;
    font-weight: var(--hws-weight-medium) !important;
    line-height: var(--hws-leading-sm) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option strong {
    color: inherit !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-panel {
    gap: var(--hws-space-2) !important;
    padding: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-panel-head {
    display: none !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-segment {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--hws-space-2);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option {
    min-height: 42px;
    padding: var(--hws-space-2) var(--hws-space-3);
    border: 1px solid var(--hws-border) !important;
    border-radius: var(--hws-radius-md);
    background: var(--hws-surface-raised) !important;
    color: var(--hws-foreground-secondary) !important;
    text-align: center;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option:hover {
    border-color: var(--hws-border-strong) !important;
    background: var(--hws-surface-subtle) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option.is-active {
    border-color: color-mix(in oklab, var(--hws-accent) 58%, var(--hws-border)) !important;
    background: var(--hws-accent-subtle) !important;
    color: var(--hws-accent) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option:focus-visible {
    outline: 2px solid var(--hws-focus) !important;
    outline-offset: 2px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-btn,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .chat-upload-history-btn,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-action-btn {
    font-size: var(--hws-text-sm) !important;
    font-weight: var(--hws-weight-medium) !important;
    line-height: var(--hws-leading-sm) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(
    .chat-upload-stage-hint,
    .chat-context-help > p
) {
    color: var(--hws-foreground-secondary) !important;
    font-size: var(--hws-text-xs) !important;
    font-weight: var(--hws-weight-normal) !important;
    line-height: var(--hws-leading-xs) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(
    .chat-source-protection,
    .chat-progress-compact-note,
    .chat-task-error
) {
    font-size: var(--hws-text-sm) !important;
    line-height: var(--hws-leading-sm) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-context-help > summary {
    width: 40px;
    height: 40px;
    border-color: transparent !important;
    background: transparent !important;
    color: var(--hws-muted-foreground) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-context-help > summary:hover,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-context-help[open] > summary {
    border-color: var(--hws-border) !important;
    background: var(--hws-surface-subtle) !important;
    color: var(--hws-foreground-secondary) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-context-help > summary:focus-visible {
    border-color: var(--hws-focus) !important;
    outline: 2px solid var(--hws-focus) !important;
    outline-offset: 2px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-progress-head > div:first-child > span {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-risk-note {
    display: none;
    margin-top: var(--hws-space-2);
    color: var(--hws-warning) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-batch-check:has(#chatUpscaleEnabled:checked) + .chat-risk-note {
    display: block;
}

/* The empty result area stays available without competing with preparation. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase="preparing"] .chat-workbench-results {
    border-color: color-mix(in oklab, var(--hws-border) 72%, transparent) !important;
    background: var(--hws-surface-subtle) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase="preparing"] .chat-result-empty::before {
    width: 34px;
    height: 34px;
    margin-bottom: var(--hws-space-3);
}

@media (min-width: 781px) and (max-width: 1119px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-switch {
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    }
}

@media (min-width: 1120px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench {
        grid-template-columns: minmax(420px, 1.32fr) minmax(288px, .82fr) minmax(320px, .96fr) !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-switch {
        grid-template-columns: repeat(5, minmax(0, 1fr)) !important;
        gap: var(--hws-space-2) !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results {
        grid-column: auto !important;
        min-height: min(748px, calc(100vh - 145px));
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is(
        [data-workbench-phase="running"],
        [data-workbench-phase="failed"],
        [data-workbench-phase="reviewing"]
    ) {
        grid-template-columns: minmax(330px, .82fr) minmax(280px, .72fr) minmax(460px, 1.46fr) !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is(
        [data-workbench-phase="running"],
        [data-workbench-phase="failed"],
        [data-workbench-phase="reviewing"]
    ) .homewear-task-switch {
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    }
}

@media (max-width: 560px) {
    .container,
    .app-shell-container,
    .app-shell-container:has(.workspace-apple-hero),
    .app-shell-container:has(.chat-shell) {
        width: 100%;
        margin-top: var(--hws-space-2);
        padding: var(--hws-space-3);
        border-right: 0;
        border-left: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .theme-toggle-minimal,
    [data-theme="light"] .theme-toggle-minimal {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        flex-basis: 44px !important;
    }

    .workspace-command-hero,
    .workspace-apple-hero {
        grid-template-columns: 1fr !important;
    }

    .workspace-command-copy,
    .workspace-apple-copy {
        min-height: 0 !important;
        padding: var(--hws-space-4) !important;
    }

    .workspace-apple-title { font-size: 22px !important; }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0s !important;
    }
}

@media (prefers-reduced-transparency: reduce) {
    html[data-theme] body :is(
        .navbar-minimal,
        .theme-toggle-minimal,
        .ds-anchor-nav,
        .chat-color-compare-panel,
        .chat-result-detail-panel,
        .batch-advanced-sheet,
        .batch-progress-sticky,
        .toolbox-confirm-card,
        .chat-result-thumb-actions,
        .workspace-spotlight-badge,
        .workspace-gallery-check
    ) {
        background: var(--hws-surface-raised) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    html[data-theme] body :is(
        .chat-color-compare-backdrop,
        .chat-result-detail-backdrop,
        .batch-advanced-backdrop,
        .toolbox-confirm-backdrop
    ) {
        background: var(--hws-scrim) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
}

/* Desktop finishing pass: make prompt creation and batch review read as solid,
 * deliberate controls instead of translucent micro-components. */
@media (min-width: 781px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench {
        min-height: 112px;
        overflow: visible;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions {
        align-items: center;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn {
        min-height: 32px !important;
        height: 32px !important;
        padding-inline: 14px !important;
        border-color: var(--hws-accent) !important;
        background: var(--hws-accent) !important;
        color: var(--hws-accent-foreground) !important;
        font-size: 12px !important;
        font-weight: var(--hws-weight-semibold) !important;
        box-shadow: none !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn:disabled {
        border-color: var(--hws-border-strong) !important;
        background: var(--hws-surface-subtle) !important;
        color: var(--hws-muted-foreground) !important;
        opacity: 1;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-write-prompt-btn {
        min-height: 30px !important;
        height: 30px !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress {
        display: grid;
        gap: 4px;
        padding: 5px 7px;
        border: 1px solid var(--hws-border);
        border-radius: 7px;
        background: var(--hws-surface-subtle);
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[hidden] {
        display: none;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-head strong {
        color: var(--hws-foreground-secondary);
        font-weight: var(--hws-weight-medium) !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-bar {
        height: 4px;
        background: var(--hws-surface-raised);
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[data-status="warning"] {
        border-color: color-mix(in oklab, var(--hws-warning) 42%, var(--hws-border));
        background: color-mix(in oklab, var(--hws-warning) 9%, var(--hws-surface));
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress[data-status="warning"] .chat-prompt-progress-head strong {
        color: var(--hws-warning);
    }

    html[data-theme] body #chatBatchShell .chat-batch-match-row {
        border: 1px solid var(--hws-border-strong);
        background: var(--hws-surface);
        box-shadow: none;
    }

    html[data-theme] body #chatBatchShell .chat-batch-image :is(span, small) {
        color: var(--hws-foreground-secondary);
    }

    html[data-theme] body #chatBatchShell .chat-batch-image strong {
        color: var(--hws-foreground);
        font-weight: var(--hws-weight-semibold) !important;
    }

    html[data-theme] body #chatBatchShell .chat-batch-prompt-preview {
        min-height: 54px;
        border: 1px solid var(--hws-border-strong);
        background: var(--hws-surface-subtle);
        color: var(--hws-foreground);
        box-shadow: none;
    }

    html[data-theme] body #chatBatchShell .chat-batch-prompt-preview > span {
        color: var(--hws-accent);
        font-weight: var(--hws-weight-semibold) !important;
    }

    html[data-theme] body #chatBatchShell .chat-batch-prompt-preview p {
        color: var(--hws-foreground-secondary);
    }

    html[data-theme] body #chatBatchShell .chat-batch-prompt-preview p b {
        display: inline-block;
        margin-right: 5px;
        color: var(--hws-foreground);
    }

    html[data-theme] body #chatBatchShell .chat-batch-add-detail {
        min-height: 32px;
        border: 1px solid color-mix(in oklab, var(--hws-accent) 48%, var(--hws-border));
        border-radius: 7px;
        background: var(--hws-surface-raised);
        color: var(--hws-accent);
        font-size: 11px !important;
        font-weight: var(--hws-weight-semibold) !important;
        box-shadow: none;
    }

    html[data-theme] body #chatBatchShell .batch-prompt-mode-card {
        border: 1px solid var(--hws-border-strong);
        border-radius: 8px;
        background: var(--hws-surface-subtle);
        box-shadow: none;
    }

    html[data-theme] body #chatBatchShell .batch-prompt-mode-switch label {
        border: 1px solid transparent;
        background: transparent;
        color: var(--hws-foreground-secondary);
        box-shadow: none !important;
    }

    html[data-theme] body #chatBatchShell .batch-prompt-mode-switch label:has(input:checked) {
        border-color: color-mix(in oklab, var(--hws-accent) 40%, var(--hws-border));
        background: var(--hws-accent-soft);
        color: var(--hws-foreground);
        box-shadow: none !important;
    }

    html[data-theme] body .batch-advanced-backdrop {
        background: rgba(15, 23, 42, 0.14) !important;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    html[data-theme="dark"] body .batch-advanced-backdrop {
        background: rgba(0, 0, 0, 0.22) !important;
    }

    html[data-theme] body .batch-advanced-sheet {
        border: 1px solid var(--hws-border-strong);
        background: var(--hws-surface-raised);
        color: var(--hws-foreground);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    html[data-theme] body .batch-advanced-sheet :is(
        .batch-advanced-sheet-head h3,
        .chat-advanced-group-heading,
        .chat-advanced-group-heading strong
    ) {
        color: var(--hws-foreground);
    }

    html[data-theme] body .batch-advanced-sheet :is(
        .chat-advanced-group-heading span,
        .chat-advanced-field .apple-label-sm
    ) {
        color: var(--hws-foreground-secondary);
    }

    html[data-theme] body .batch-advanced-settings {
        border: 1px solid var(--hws-border);
        background: var(--hws-surface-subtle);
    }

    html[data-theme] body .batch-advanced-sheet-head .chat-mini-btn {
        border-color: var(--hws-border-strong) !important;
        background: var(--hws-surface-subtle) !important;
        color: var(--hws-foreground) !important;
        box-shadow: none !important;
    }

    html[data-theme] body .batch-advanced-sheet #batchResetResultsBtn {
        min-height: 32px;
        border: 1px solid var(--hws-border-strong);
        background: var(--hws-surface-raised);
        color: var(--hws-foreground);
        box-shadow: none;
    }

    html[data-theme] body .batch-prompt-detail-panel .chat-result-detail-prompt-primary {
        border: 1px solid var(--hws-border-strong);
        background: var(--hws-surface-subtle);
    }

    html[data-theme] body .batch-prompt-detail-panel .chat-result-detail-prompt-primary p {
        max-height: 260px;
        overflow: auto;
        color: var(--hws-foreground);
        white-space: pre-wrap;
    }
}

/* Production visual contract derived from the approved interactive prototype.
 * Model creation keeps its dedicated mc-* implementation. The rules below are
 * deliberately scoped to the standard single/upscale and batch workbenches. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench,
html[data-theme] body #chatBatchShell.chat-batch-shell {
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--hws-border);
    border-radius: var(--hws-radius-xl);
    background: var(--hws-surface);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card,
html[data-theme] body #chatBatchShell.chat-batch-shell > .panel-card {
    min-width: 0;
    min-height: 680px;
    padding: 14px;
    border: 0;
    border-radius: 0;
    background: var(--hws-surface) !important;
    box-shadow: none;
}

html[data-theme] body :is(#chatSingleShell, #chatBatchShell) > .panel-card + .panel-card {
    border-left: 1px solid var(--hws-border);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .workspace-panel-heading,
html[data-theme] body #chatBatchShell.chat-batch-shell .workspace-panel-heading {
    min-height: 24px;
    margin-bottom: 6px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--hws-border);
}

/* Compact source cards mirror the approved prototype: up to four role slots
 * share one row, while one-to-three-slot modes keep their natural count. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid:where([data-visible-slots="1"]) {
    grid-template-columns: minmax(0, min(100%, 260px));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid:where([data-visible-slots="2"], [data-visible-slots="3"], [data-visible-slots="4"]) {
    grid-template-columns: repeat(var(--chat-visible-slot-columns, 2), minmax(0, 1fr));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid:where([data-visible-slots="2"]) { --chat-visible-slot-columns: 2; }
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid:where([data-visible-slots="3"]) { --chat-visible-slot-columns: 3; }
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid:where([data-visible-slots="4"]) { --chat-visible-slot-columns: 4; }

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-content {
    aspect-ratio: 4 / 5;
    min-height: 0;
    background: var(--hws-surface-subtle) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-preview {
    object-fit: contain;
    background: var(--hws-surface-subtle);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-btn,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .chat-upload-history-btn {
    min-height: 26px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-toolbar {
    margin-top: 6px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea {
    min-height: 72px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-textarea {
    min-height: 104px;
    max-height: 180px;
}

/* Results are a compact, complete-image contact sheet instead of one enlarged
 * card filling the entire middle column. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase="preparing"] .chat-workbench-results {
    background: var(--hws-surface) !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel {
    align-items: flex-start;
    overflow: auto;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel > #chatOutput.chat-result-thumb-grid,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel > #chatOutput.chat-result-thumb-grid:has(.chat-result-thumb-card:only-child) {
    --chat-result-thumb-width: 240px;
    --chat-result-thumb-max: 240px;
    grid-template-columns: repeat(var(--chat-result-grid-columns, 1), minmax(0, var(--chat-result-thumb-max, 240px)));
    grid-auto-rows: min-content;
    align-content: start;
    justify-content: start;
    gap: 9px;
    width: 100%;
    min-height: 0;
    overflow: visible;
    padding: 0;
    background: transparent !important;
}

/* 3 张及以上进入填满模式：轨道恢复 1fr，卡片随轨道拉满，保持整区齐宽。 */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel > #chatOutput.chat-result-thumb-grid[data-result-fill="true"] {
    grid-template-columns: repeat(var(--chat-result-grid-columns, 1), minmax(0, 1fr));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-thumb-card {
    aspect-ratio: auto;
    overflow: hidden;
    max-width: min(100%, var(--chat-result-thumb-max, 240px));
    border: 1px solid color-mix(in oklab, var(--hws-border) 82%, var(--hws-foreground) 10%);
    background: var(--hws-surface);
    box-shadow:
        inset 0 1px 0 color-mix(in oklab, #fff 78%, transparent),
        0 1px 2px color-mix(in oklab, var(--hws-foreground) 8%, transparent);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatOutput[data-result-fill="true"] .chat-result-thumb-card {
    max-width: none;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-thumb-button {
    aspect-ratio: auto;
    height: auto;
    max-height: none;
    padding: 0;
    background: transparent;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-thumb-button img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    background: transparent;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) max-content;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-top: 1px solid color-mix(in oklab, var(--hws-border) 88%, transparent);
    background: color-mix(in oklab, var(--hws-surface-subtle) 70%, var(--hws-surface));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-copy {
    min-width: 0;
    display: block;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-copy :is(span, small) {
    color: var(--hws-foreground);
    font-size: 11px;
    line-height: 1.2;
    font-weight: 650;
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row .chat-result-thumb-actions {
    width: auto;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-end;
    gap: 4px;
    position: static;
    border: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row :is(.chat-result-detail-btn, .chat-result-compare-btn, .chat-result-thumb-download) {
    flex: 0 0 auto;
    min-height: 24px;
    display: inline-flex;
    align-items: center;
    padding: 0 7px;
    border: 1px solid color-mix(in oklab, var(--hws-border) 82%, var(--hws-foreground) 10%);
    border-radius: 6px;
    background: var(--hws-surface);
    box-shadow: inset 0 1px 0 color-mix(in oklab, #fff 76%, transparent);
    color: var(--hws-foreground);
    font-size: 11px;
    font-weight: 650;
    white-space: nowrap;
    -webkit-appearance: none;
    appearance: none;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-empty {
    width: 100%;
    height: auto;
    min-height: 220px;
    align-content: center;
    background: var(--hws-surface-subtle);
}

/* Independent repair uses the same shell but reserves a legible comparison
 * stage. A retained original becomes the first card; otherwise the result is
 * shown alone and the user is told why comparison is unavailable. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-upload-grid:where([data-visible-slots="1"]) {
    grid-template-columns: minmax(220px, 260px);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-upload-card .apple-upload-content {
    aspect-ratio: 3 / 4;
    min-height: 240px;
    max-height: 360px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-result-panel > #chatOutput.chat-result-thumb-grid {
    grid-template-columns: repeat(2, minmax(0, var(--chat-result-thumb-max, 240px)));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale #chatOutput .chat-result-thumb-card {
    max-width: min(100%, var(--chat-result-thumb-max, 240px));
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-result-thumb-button {
    height: auto;
    max-height: none;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale #chatOutput:has(.chat-result-thumb-card:only-child)::before {
    content: "原图未保留，请重新选择原图后对比";
    grid-column: 1 / -1;
    padding: 9px 10px;
    border: 1px solid var(--hws-border);
    border-radius: var(--hws-radius-md);
    background: var(--hws-surface-subtle);
    color: var(--hws-muted-foreground);
    font-size: var(--hws-text-xs);
}

/* Batch keeps its production semantics while adopting the same density,
 * surfaces, thumbnail treatment and responsive column contract. */
html[data-theme] body #chatBatchShell .chat-batch-match-list {
    gap: 6px;
    max-height: 270px;
}

html[data-theme] body #chatBatchShell .chat-batch-match-row {
    min-height: 60px;
    grid-template-columns: 34px minmax(150px, 1.15fr) minmax(140px, 1fr) minmax(82px, auto);
    gap: 8px;
    padding: 5px 8px;
    border-radius: 9px;
    background: var(--hws-surface-raised);
}

html[data-theme] body #chatBatchShell .chat-batch-image {
    grid-template-columns: 48px minmax(0, 1fr);
}

html[data-theme] body #chatBatchShell .chat-batch-image img {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    object-fit: contain;
    background: var(--hws-surface-subtle);
}

html[data-theme] body #chatBatchShell .chat-batch-match-status {
    min-height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    border-radius: 999px;
}

html[data-theme="light"] body #chatBatchShell .chat-batch-match-row[data-status="done"] .chat-batch-match-status {
    color: oklch(0.38 0.12 150);
    background: oklch(0.93 0.05 150);
}

html[data-theme="light"] body #chatBatchShell .chat-batch-match-row:is([data-status="failed"], [data-status="prompt_failed"], [data-status="review_failed"]) .chat-batch-match-status {
    color: oklch(0.42 0.17 28);
    background: oklch(0.94 0.045 28);
}

html[data-theme="light"] body #chatBatchShell .chat-batch-match-row:is([data-status="timeout"], [data-status="paused"]) .chat-batch-match-status {
    color: oklch(0.42 0.11 72);
    background: oklch(0.94 0.05 72);
}

html[data-theme] body #chatBatchShell #batchOutput {
    --batch-result-thumb-min: 180px;
    --batch-result-thumb-max: 240px;
    grid-template-columns: repeat(var(--batch-result-grid-columns, 1), minmax(0, var(--batch-result-thumb-max, 240px)));
    justify-content: start;
    gap: 9px;
    min-height: 0;
    padding: 0;
    background: transparent !important;
}

html[data-theme] body #chatBatchShell #batchOutput[data-result-fill="true"] {
    grid-template-columns: repeat(var(--batch-result-grid-columns, 1), minmax(0, 1fr));
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-thumb-card {
    aspect-ratio: auto;
    overflow: hidden;
    max-width: min(100%, var(--batch-result-thumb-max, 240px));
    border: 1px solid color-mix(in oklab, var(--hws-border) 82%, var(--hws-foreground) 10%);
    background: var(--hws-surface);
    box-shadow:
        inset 0 1px 0 color-mix(in oklab, #fff 78%, transparent),
        0 1px 2px color-mix(in oklab, var(--hws-foreground) 8%, transparent);
}

html[data-theme] body #chatBatchShell #batchOutput[data-result-fill="true"] .chat-result-thumb-card {
    max-width: none;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-thumb-button {
    aspect-ratio: auto;
    height: auto;
    max-height: none;
    padding: 0;
    background: transparent;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-thumb-button img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    background: transparent;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) max-content;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-top: 1px solid color-mix(in oklab, var(--hws-border) 88%, transparent);
    background: color-mix(in oklab, var(--hws-surface-subtle) 70%, var(--hws-surface));
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-copy {
    min-width: 0;
    display: block;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-copy :is(span, small) {
    color: var(--hws-foreground);
    font-size: 11px;
    line-height: 1.2;
    font-weight: 650;
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row .chat-result-thumb-actions {
    width: auto;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-end;
    gap: 4px;
    position: static;
    border: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
}

html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row :is(.chat-result-detail-btn, .chat-result-compare-btn, .chat-result-thumb-download) {
    flex: 0 0 auto;
    min-height: 24px;
    display: inline-flex;
    align-items: center;
    padding: 0 7px;
    border: 1px solid color-mix(in oklab, var(--hws-border) 82%, var(--hws-foreground) 10%);
    border-radius: 6px;
    background: var(--hws-surface);
    box-shadow: inset 0 1px 0 color-mix(in oklab, #fff 76%, transparent);
    color: var(--hws-foreground);
    font-size: 11px;
    font-weight: 650;
    white-space: nowrap;
    -webkit-appearance: none;
    appearance: none;
}

@media (min-width: 1280px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-workbench-phase="running"], [data-workbench-phase="failed"], [data-workbench-phase="reviewing"]) {
        grid-template-columns: clamp(280px, 21vw, 320px) minmax(560px, 1fr) clamp(280px, 22vw, 330px) !important;
        height: min(920px, calc(100vh - 176px));
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center { grid-column: 3; grid-row: 1; }

    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: clamp(300px, 22vw, 350px) minmax(600px, 1fr) clamp(280px, 21vw, 330px) !important;
        min-height: 680px;
    }
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-generate-panel { grid-column: 3; grid-row: 1; }
}

@media (min-width: 781px) and (max-width: 1279px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(220px, .72fr) minmax(0, 1.45fr) !important;
        height: auto;
        overflow: visible;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel {
        grid-column: 1 / -1;
        grid-row: 2;
        min-height: 0;
        border-top: 1px solid var(--hws-border);
        border-left: 0;
    }

}

@media (max-width: 780px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(0, 1fr) !important;
        height: auto;
        overflow: visible;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card,
    html[data-theme] body #chatBatchShell.chat-batch-shell > .panel-card {
        min-height: 0;
        border-left: 0;
        border-top: 1px solid var(--hws-border);
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel { order: 1; border-top: 0; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel { order: 2; min-height: 430px; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel { order: 3; }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-result-panel > #chatOutput.chat-result-thumb-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench.is-independent-upscale .chat-result-thumb-button {
        height: auto;
        max-height: none;
    }
}


@media (prefers-contrast: more) {
    html[data-theme] body :is(
        .navbar-minimal,
        .theme-toggle-minimal,
        .panel-card,
        .apple-step-card,
        .apple-info-card,
        .apple-input,
        .apple-select,
        .apple-textarea,
        .chat-color-compare-panel,
        .chat-result-detail-panel,
        .batch-advanced-sheet,
        .batch-progress-sticky,
        .toolbox-confirm-card,
        .chat-result-thumb-actions,
        .workspace-spotlight-badge,
        .workspace-gallery-check
    ) {
        border-color: var(--hws-foreground) !important;
    }

    html[data-theme] body :is(
        .navbar-minimal,
        .theme-toggle-minimal,
        .chat-color-compare-panel,
        .chat-result-detail-panel,
        .batch-advanced-sheet,
        .batch-progress-sticky,
        .toolbox-confirm-card,
        .chat-result-thumb-actions,
        .workspace-spotlight-badge,
        .workspace-gallery-check
    ) {
        background: var(--hws-surface-raised) !important;
        color: var(--hws-foreground) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
}

/* Unified generation workbench: one functional navigation and one compact
 * workspace contract for model creation, single generation, and batch work. */
html[data-theme] body :is(#modelCreationShell, #chatSingleShell, #chatBatchShell)[hidden] {
    display: none !important;
}

html[data-theme] body .chat-workbench-chrome {
    width: 100%;
    margin: var(--hws-space-3) 0;
    overflow: hidden;
    border: 1px solid var(--hws-border);
    border-radius: var(--hws-radius-xl);
    background: var(--hws-surface);
    color: var(--hws-foreground);
}

html[data-theme] body .chat-workbench-toolbar {
    min-height: 58px;
    padding: var(--hws-space-3) var(--hws-space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--hws-space-4);
}

html[data-theme] body .chat-workbench-identity {
    min-width: 0;
    display: grid;
    gap: 2px;
}

html[data-theme] body .chat-workbench-identity > p {
    margin: 0;
    color: var(--hws-muted-foreground);
    font-size: var(--hws-text-xs);
    font-weight: var(--hws-weight-medium);
    line-height: var(--hws-leading-xs);
}

html[data-theme] body .chat-workbench-title-row,
html[data-theme] body .chat-workbench-connection,
html[data-theme] body .chat-workbench-toolbar-actions,
html[data-theme] body .chat-workbench-task-actions {
    display: flex;
    align-items: center;
}

html[data-theme] body .chat-workbench-title-row { min-width: 0; gap: var(--hws-space-3); }

html[data-theme] body .chat-workbench-title-row h1 {
    margin: 0;
    color: var(--hws-foreground);
    font-size: var(--hws-text-2xl);
    font-weight: var(--hws-weight-semibold);
    line-height: var(--hws-leading-2xl);
    letter-spacing: -.02em;
}

html[data-theme] body .chat-workbench-connection {
    gap: var(--hws-space-2);
    color: var(--hws-muted-foreground);
    font-size: var(--hws-text-xs);
    line-height: var(--hws-leading-xs);
}

html[data-theme] body .chat-workbench-toolbar-actions { justify-content: flex-end; gap: var(--hws-space-3); }
html[data-theme] body .chat-workbench-task-actions { gap: var(--hws-space-2); }

html[data-theme] body .chat-workbench-task-action {
    min-width: 108px;
    min-height: 38px;
    padding: 5px 9px;
    display: grid;
    align-content: center;
    gap: 1px;
    border: 1px solid var(--hws-border);
    border-radius: var(--hws-radius-md);
    background: var(--hws-surface-raised);
    color: var(--hws-foreground);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

html[data-theme] body .chat-workbench-task-action span {
    font-size: var(--hws-text-sm);
    font-weight: var(--hws-weight-semibold);
    line-height: var(--hws-leading-sm);
}

html[data-theme] body .chat-workbench-task-action small {
    color: var(--hws-muted-foreground);
    font-size: 10px;
    line-height: 1.2;
}

html[data-theme] body .chat-workbench-task-action:hover {
    border-color: var(--hws-border-strong);
    background: var(--hws-surface-subtle);
}

html[data-theme] body :is(.chat-workbench-task-action, .chat-workbench-task-nav button):focus-visible {
    outline: 2px solid var(--hws-focus);
    outline-offset: 2px;
}

html[data-theme] body .chat-workbench-chrome .chat-mode-switch {
    min-height: 38px;
    padding: 3px;
    border: 1px solid var(--hws-border);
    border-radius: var(--hws-radius-md);
    background: var(--hws-surface-subtle);
}

html[data-theme] body .chat-workbench-chrome .chat-mode-btn {
    min-height: 30px;
    padding: 0 var(--hws-space-3);
    border-radius: 6px;
    font-size: var(--hws-text-xs);
}

html[data-theme] body .chat-workbench-task-nav {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 2px;
    padding: 0 6px 6px;
    border-top: 1px solid var(--hws-border);
}

html[data-theme] body .chat-workbench-task-nav button {
    min-width: 0;
    min-height: 38px;
    padding: 0 var(--hws-space-2);
    border: 1px solid transparent;
    border-radius: var(--hws-radius-md);
    background: transparent;
    color: var(--hws-foreground-secondary);
    font: inherit;
    font-size: var(--hws-text-sm);
    font-weight: var(--hws-weight-medium);
    cursor: pointer;
}

html[data-theme] body .chat-workbench-task-nav button:hover {
    background: var(--hws-surface-subtle);
    color: var(--hws-foreground);
}

html[data-theme] body .chat-workbench-task-nav button.is-active {
    border-color: color-mix(in oklab, var(--hws-accent) 40%, var(--hws-border));
    background: var(--hws-accent-subtle);
    color: var(--hws-accent);
    font-weight: var(--hws-weight-semibold);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card,
html[data-theme] body #chatBatchShell.chat-batch-shell > .panel-card {
    container-type: inline-size;
    min-height: min(690px, calc(100vh - 150px));
    padding: var(--hws-space-3);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .workspace-panel-heading,
html[data-theme] body #chatBatchShell.chat-batch-shell .workspace-panel-heading {
    margin-bottom: 6px;
    padding-bottom: 6px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left-scroll,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center-scroll {
    gap: var(--hws-space-2);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-card {
    gap: 6px !important;
    padding-bottom: 6px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-head {
    min-height: 18px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left > .workspace-panel-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 6px;
    row-gap: 2px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left > .workspace-panel-heading .chat-workbench-heading-stack {
    display: contents;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left > .workspace-panel-heading .workspace-section-title {
    grid-column: 1 / -1;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left > .workspace-panel-heading .homewear-task-head {
    grid-column: 1;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left > .workspace-panel-heading .chat-material-counter {
    grid-column: 2;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-task-head strong {
    font-size: 13px !important;
    line-height: 18px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .workspace-section-title {
    font-size: 14px !important;
    line-height: 20px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-material-counter,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-total {
    font-size: 10px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .homewear-mode-option {
    min-height: 32px;
    padding: 4px 8px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-placeholder {
    gap: 4px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-placeholder svg {
    width: 18px;
    height: 18px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-text,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-btn,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .chat-upload-history-btn,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-action-btn {
    font-size: 10px !important;
    line-height: 14px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.has-image .apple-upload-btn span::after,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.has-image .chat-upload-history-btn::after {
    font-size: 10px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-text {
    display: -webkit-box;
    padding-inline: 2px;
    overflow: hidden;
    text-align: center;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card:not(.has-image) .apple-upload-btn {
    aspect-ratio: 4 / 5;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.is-extra-slot {
    grid-column: span 2;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-control {
    min-height: 28px;
    gap: 4px;
    padding: 3px 5px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-control label,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-select,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-slot-remove {
    font-size: 10px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-select,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-slot-remove {
    min-height: 26px;
    border-radius: 5px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-select {
    padding-inline: 5px;
    border-color: var(--hws-border);
    background: var(--hws-surface-raised);
    color: var(--hws-foreground);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-image-ratio-badge {
    display: none !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-toolbar {
    gap: 6px;
    padding-top: 6px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-action-btn {
    min-height: 26px;
    padding-inline: 7px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea {
    min-height: 54px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench {
    padding: 10px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px;
    margin-top: 6px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn {
    min-width: 0;
    min-height: 32px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-write-prompt-btn {
    min-height: 32px;
    padding-inline: 8px;
    font-size: 11px;
    white-space: nowrap;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-inline-hint {
    margin-top: 4px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-textarea {
    min-height: 86px;
    max-height: 190px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center {
    container-name: chat-settings;
    gap: var(--hws-space-3);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-core-controls,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-setting-row {
    gap: var(--hws-space-3);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-aspect-option {
    min-height: 52px;
    gap: var(--hws-space-1);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-context-help > summary {
    width: 30px;
    height: 30px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-progress-head {
    gap: 6px;
    padding: 6px 0;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-task-details summary {
    min-height: 30px;
    padding: 6px 0;
    font-size: 11px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel {
    margin-top: var(--hws-space-2);
    padding-top: 0;
}

html[data-theme] body #chatBatchShell.chat-batch-shell {
    gap: var(--hws-space-3);
    align-items: stretch;
}

html[data-theme] body #chatBatchShell .chat-batch-task-card {
    gap: var(--hws-space-2);
    padding: var(--hws-space-3);
    border-radius: var(--hws-radius-lg);
}

html[data-theme] body #chatBatchShell .homewear-task-head { min-height: 24px; }
html[data-theme] body #chatBatchShell .homewear-mode-panel { gap: var(--hws-space-2); padding: var(--hws-space-2); }
html[data-theme] body #chatBatchShell .homewear-mode-option { min-height: 34px; padding: var(--hws-space-1) var(--hws-space-2); }
html[data-theme] body #chatBatchShell .homewear-role-grid { gap: var(--hws-space-1); }
html[data-theme] body #chatBatchShell .homewear-role-grid span { min-height: 28px; padding: var(--hws-space-1) var(--hws-space-2); }
html[data-theme] body #chatBatchShell .chat-batch-paths { gap: var(--hws-space-2); }
html[data-theme] body #chatBatchShell .chat-batch-field { gap: var(--hws-space-1); }
html[data-theme] body #chatBatchShell .desktop-directory-control :is(.apple-input, .apple-secondary-btn) { min-height: 38px; }
html[data-theme] body #chatBatchShell .chat-batch-path-actions { margin: var(--hws-space-2) 0; }
html[data-theme] body #chatBatchShell .chat-batch-check { min-height: 38px; padding: var(--hws-space-2); }
html[data-theme] body #chatBatchShell #batchPrompt { min-height: 62px; }
html[data-theme] body #chatBatchShell .chat-generation-controls { gap: var(--hws-space-3); }
html[data-theme] body #chatBatchShell .chat-advanced-group { padding: var(--hws-space-3); }
html[data-theme] body #chatBatchShell .batch-progress-sticky { padding: var(--hws-space-3); }
html[data-theme] body #chatBatchShell .batch-progress-dashboard { gap: var(--hws-space-2); }
html[data-theme] body #chatBatchShell .batch-filter-row { gap: var(--hws-space-1); margin-top: var(--hws-space-2); }
html[data-theme] body #chatBatchShell .batch-filter-row button { min-height: 30px; padding: 0 var(--hws-space-2); }
html[data-theme] body #chatBatchShell .chat-current-task-section { max-height: 230px; overflow: auto; }

/* Task-local density refinements. Keep the global result and form vocabulary
 * unchanged: pose and background replacement need shorter result footers, while
 * combination batch uses denser path controls and a quieter thumbnail-size
 * control on desktop. */
@media (min-width: 781px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-active-task="pose"], [data-active-task="background_replace"]) .chat-result-info-row {
        grid-template-columns: minmax(0, 1fr) max-content;
        column-gap: var(--hws-space-1);
        row-gap: 0;
        padding: 5px 8px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-active-task="pose"], [data-active-task="background_replace"]) .chat-result-info-status {
        min-width: 0;
        overflow: hidden;
        line-height: var(--hws-leading-tight);
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-active-task="pose"], [data-active-task="background_replace"]) .chat-result-info-row .chat-result-thumb-actions {
        display: flex;
        flex-wrap: nowrap;
        justify-content: flex-end;
        gap: 4px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-active-task="pose"], [data-active-task="background_replace"]) .chat-result-info-row :is(.chat-result-detail-btn, .chat-result-compare-btn, .chat-result-thumb-download) {
        min-height: 24px;
        padding: 0 7px;
        white-space: nowrap;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .chat-batch-paths {
        gap: 6px;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .chat-batch-field {
        gap: 2px;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .chat-batch-field > span,
    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .chat-batch-field .apple-input,
    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .desktop-directory-button {
        font-size: var(--hws-text-xs) !important;
        line-height: var(--hws-leading-xs) !important;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .desktop-directory-control {
        gap: 6px;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .desktop-directory-control :is(.apple-input, .apple-secondary-btn) {
        min-height: 34px;
        height: 34px;
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .desktop-directory-button {
        min-width: 88px;
        padding-inline: var(--hws-space-2);
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .batch-result-size-control {
        width: 112px;
        min-width: 112px;
        grid-template-columns: auto minmax(52px, 1fr) 12px;
        gap: var(--hws-space-1);
        font-size: var(--hws-text-xs);
        line-height: var(--hws-leading-xs);
    }

    html[data-theme] body #chatBatchShell.chat-batch-shell[data-active-task="combination"] .batch-result-size-control input[type="range"] {
        height: 16px;
    }
}

@container chat-settings (max-width: 360px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-aspect-options {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-aspect-option:last-child {
        grid-column: auto;
    }
}

/* A completed result may expose compare, retry, details, reveal and export at
 * the same time. Keep that five-action edge case inside compact thumbnails. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row:has(.chat-result-thumb-actions > :nth-child(5)),
html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row:has(.chat-result-thumb-actions > :nth-child(5)) {
    grid-template-columns: minmax(0, 1fr);
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row:has(.chat-result-thumb-actions > :nth-child(5)) .chat-result-thumb-actions,
html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row:has(.chat-result-thumb-actions > :nth-child(5)) .chat-result-thumb-actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
}

@media (min-width: 1120px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase] {
        grid-template-columns: minmax(300px, .82fr) minmax(460px, 1.46fr) minmax(290px, .78fr) !important;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center { grid-column: 3; grid-row: 1; }

    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(300px, .82fr) minmax(460px, 1.42fr) minmax(300px, .8fr);
    }
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-generate-panel { grid-column: 3; grid-row: 1; }
}

@media (min-width: 781px) and (max-width: 1119px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(250px, .9fr) minmax(340px, 1.1fr) !important;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel { grid-column: 1 / -1; grid-row: 2; min-height: 0; }
}

@media (max-width: 760px) {
    html[data-theme] body .chat-workbench-toolbar { align-items: stretch; flex-direction: column; gap: var(--hws-space-3); }
    html[data-theme] body .chat-workbench-toolbar-actions { justify-content: space-between; }
    html[data-theme] body .chat-workbench-task-nav { display: flex; overflow-x: auto; scroll-snap-type: x proximity; }
    html[data-theme] body .chat-workbench-task-nav button { min-width: 96px; scroll-snap-align: start; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel { order: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel { order: 2; min-height: 430px; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel { order: 3; min-height: 0; }
}

@media (max-width: 520px) {
    html[data-theme] body .chat-workbench-toolbar { padding: var(--hws-space-3); }
    html[data-theme] body .chat-workbench-title-row { align-items: flex-start; flex-direction: column; gap: var(--hws-space-1); }
    html[data-theme] body .chat-workbench-toolbar-actions { align-items: stretch; flex-direction: column; }
    html[data-theme] body .chat-workbench-task-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    html[data-theme] body .chat-workbench-task-action { min-width: 0; }
    html[data-theme] body .chat-workbench-chrome .chat-mode-switch { width: 100%; }
    html[data-theme] body .chat-workbench-chrome .chat-mode-btn { flex: 1; }
}

/* Desktop density refinement from live visual review.
 * Keep the model-creation surface untouched; this contract only tunes the
 * shared single-generation workbench at desktop widths. */
@media (min-width: 781px) {
    html[data-theme] body .navbar-container {
        position: relative;
    }

    html[data-theme] body .navbar-nav-minimal {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    html[data-theme] body .navbar-brand-minimal {
        order: 1;
        margin-right: auto;
    }

    html[data-theme] body .theme-toggle-minimal {
        order: 3;
        margin-left: auto !important;
        margin-right: 0 !important;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-workbench-toolbar-actions {
        width: min(46vw, 460px);
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-workbench-task-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-workbench-task-action,
    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-mode-switch {
        width: 100%;
        min-width: 0;
        min-height: 34px;
        height: 34px;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-mode-switch {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
        padding: 0;
        border: 0;
        background: transparent !important;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-workbench-task-action {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0 9px;
        text-align: center;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-workbench-task-action small {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    html[data-theme] body #chatWorkbenchChrome:not([data-workbench-feature="model_creation"]) .chat-mode-btn {
        min-height: 34px;
        height: 34px;
        border: 1px solid var(--hws-border);
        background: var(--hws-surface-raised);
    }

    html[data-theme] body #chatBatchShell .chat-batch-task-card {
        gap: 6px;
        padding: 8px;
    }

    html[data-theme] body #chatBatchShell .homewear-task-head {
        min-height: 20px;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-panel {
        display: grid;
        grid-template-columns: 72px minmax(0, 1fr);
        align-items: center;
        gap: 6px;
        padding: 5px 6px;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-panel-head {
        min-width: 0;
        display: grid;
        align-content: center;
        justify-items: start;
        gap: 0;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-panel-head > span {
        font-size: 9px !important;
        line-height: 11px !important;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-panel-head > strong {
        max-width: 100%;
        overflow: hidden;
        font-size: 11px !important;
        line-height: 14px !important;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-segment {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 4px;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-option {
        min-height: 30px;
        padding: 3px 7px;
        text-align: center;
    }

    html[data-theme] body #chatBatchShell .homewear-mode-option strong {
        font-size: 11px !important;
        line-height: 14px !important;
    }

    html[data-theme] body #chatBatchShell .homewear-role-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
    }

    html[data-theme] body #chatBatchShell .homewear-role-grid span {
        flex: 0 1 auto;
        min-height: 22px;
        padding: 2px 6px;
        border-radius: 6px;
        font-size: 9px !important;
        line-height: 12px !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-toolbar {
        min-height: 30px;
        justify-content: flex-end;
        margin-top: 4px;
        padding-top: 4px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-actions {
        width: auto;
        display: flex;
        justify-content: flex-end;
        gap: 5px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-action-btn {
        min-height: 24px;
        padding-inline: 7px;
        font-size: 10px !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-grid {
        gap: 7px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-text {
        font-size: 9px !important;
        line-height: 12px !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-upload-placeholder svg {
        width: 16px;
        height: 16px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-remove-btn {
        top: 4px;
        right: 4px;
        width: 18px;
        height: 18px;
        border-radius: 50%;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card .apple-remove-btn svg {
        width: 10px;
        height: 10px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.is-extra-slot {
        grid-column: span 2;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.is-extra-slot .apple-upload-content,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card.is-extra-slot:not(.has-image) .apple-upload-btn {
        aspect-ratio: auto;
        height: 58px;
        min-height: 58px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-control {
        min-height: 28px;
        grid-template-columns: minmax(0, 1fr);
        gap: 4px;
        padding: 3px 5px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-control label {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-detail-role-select {
        min-height: 28px;
        padding-inline: 7px;
        border-color: var(--hws-border-strong);
        background: var(--hws-surface-raised);
        color: var(--hws-foreground);
        font-size: 11px;
        font-weight: 650;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-slot-remove {
        min-height: 24px;
        padding: 0 6px;
        border-color: color-mix(in oklab, var(--hws-danger) 38%, var(--hws-border));
        background: color-mix(in oklab, var(--hws-danger) 10%, var(--hws-surface));
        color: var(--hws-danger);
        font-size: 10px;
        font-weight: 650;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        gap: 4px 6px;
        min-height: 112px;
        padding: 6px 8px;
        overflow: hidden;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench .chat-brief-head {
        grid-column: 1;
        grid-row: 1;
        height: 24px;
        min-height: 24px;
        margin: 0;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench .chat-context-help > summary {
        width: 20px;
        height: 20px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea {
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
        min-width: 0;
        min-height: 54px;
        height: 54px;
        max-height: 76px;
        padding: 6px 8px;
        font-size: 11px;
        line-height: 18px;
        resize: vertical;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions {
        grid-column: 2;
        grid-row: 1;
        display: flex;
        min-width: 0;
        gap: 4px;
        margin: 0;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-enhance-btn, .chat-write-prompt-btn) {
        min-width: 0;
        min-height: 30px;
        height: 30px;
        padding-inline: 12px;
        font-size: 12px !important;
        line-height: 16px !important;
        white-space: nowrap;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-enhance-btn:not(:disabled) {
        border-color: var(--hws-accent) !important;
        background: var(--hws-accent) !important;
        color: var(--hws-accent-foreground) !important;
        font-weight: var(--hws-weight-semibold) !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench > .chat-inline-hint {
        grid-column: 1 / -1;
        grid-row: 3;
        margin: 0;
        font-size: 10px;
        line-height: 12px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench > .chat-inline-hint {
        grid-row: 4;
        position: static;
        width: auto;
        height: auto;
        min-height: 12px;
        padding: 0 1px;
        overflow: visible;
        clip: auto;
        white-space: normal;
        color: var(--hws-muted-foreground);
        border: 0;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-panel > summary {
        min-height: 28px;
        padding: 0 8px;
        gap: 5px;
        cursor: default;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-panel > summary::after {
        display: none;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-result {
        font-size: 10px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-editor {
        display: block !important;
        padding: 0 8px 8px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-editor .chat-brief-head {
        margin: 6px 0 4px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-editor .chat-context-help > summary {
        width: 22px;
        height: 22px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-final-prompt-textarea {
        min-height: 156px;
        max-height: 280px;
        padding: 8px 9px;
        font-size: 12px;
        line-height: 1.5;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results > .workspace-panel-heading {
        min-height: 20px;
        margin-bottom: 3px;
        padding-bottom: 3px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results {
        gap: 0 !important;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-progress-head {
        grid-template-columns: auto minmax(120px, 1fr);
        align-items: center;
        gap: 8px;
        padding: 3px 0;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-progress-bar {
        height: 4px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-task-details summary {
        min-height: 24px;
        padding: 3px 0;
        font-size: 10px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-panel {
        align-items: stretch;
        margin-top: 5px;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatOutput:has(.chat-result-empty) {
        width: 100%;
        height: 100%;
        min-height: 0;
        grid-template-columns: minmax(0, 1fr) !important;
        grid-auto-rows: minmax(0, 1fr) !important;
        align-content: stretch;
    }

    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-empty {
        width: 100%;
        height: 100%;
        min-height: 0;
        align-self: stretch;
        place-content: center;
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-section {
        padding: 0 !important;
        overflow: clip;
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-summary {
        min-height: 34px;
        margin: 0;
        padding: 6px 8px;
        display: flex;
        align-items: center;
        gap: 8px;
        cursor: pointer;
        list-style: none;
        color: var(--hws-foreground);
        font-size: 11px;
        font-weight: 650;
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-summary::-webkit-details-marker {
        display: none;
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-summary > small,
    html[data-theme] body #chatBatchShell .batch-collapsible-summary > .chat-result-total {
        margin-left: auto;
        color: var(--hws-muted-foreground);
        font-size: 10px;
        font-weight: 500;
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-summary::after {
        content: "⌄";
        color: var(--hws-muted-foreground);
        font-size: 12px;
        transform: rotate(-90deg);
        transition: transform 180ms var(--hws-ease-standard);
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-section[open] > .batch-collapsible-summary::after {
        transform: rotate(0deg);
    }

    html[data-theme] body #chatBatchShell .batch-collapsible-content {
        padding: 4px 8px 7px;
        display: grid;
        gap: 5px;
    }

    html[data-theme] body #chatBatchShell .batch-progress-sticky {
        position: static;
        gap: 0;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    html[data-theme] body #chatBatchShell .batch-progress-dashboard {
        gap: 6px;
    }

    html[data-theme] body #chatBatchShell .batch-progress-lane {
        min-height: 42px;
        padding: 5px 7px;
    }

    html[data-theme] body #chatBatchShell .batch-filter-row {
        gap: 4px;
    }

    html[data-theme] body #chatBatchShell .batch-filter-row button {
        min-height: 26px;
        padding: 3px 7px;
        font-size: 10px;
    }

    html[data-theme] body #chatBatchShell .batch-secondary-actions > summary {
        min-height: 24px;
        padding-block: 3px;
        font-size: 10px;
    }

    html[data-theme] body #chatBatchShell .chat-batch-summary-section > .chat-batch-match-list {
        max-height: 180px;
        margin: 0 8px 8px;
    }
}

@media (prefers-reduced-transparency: reduce) {
    html[data-theme] body :is(.chat-workbench-chrome, .chat-workbench-task-action) {
        background: var(--hws-surface-raised) !important;
        backdrop-filter: none !important;
    }
}

/* Final cascade ownership for the approved prototype breakpoints. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench,
html[data-theme] body #chatBatchShell.chat-batch-shell { gap: 0 !important; }
html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card,
html[data-theme] body #chatBatchShell.chat-batch-shell > .panel-card { min-height: 680px; }

@media (min-width: 1280px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatSingleShell.chat-desktop-workbench:is([data-workbench-phase="running"], [data-workbench-phase="failed"], [data-workbench-phase="reviewing"]) {
        grid-template-columns: clamp(310px, 22vw, 330px) minmax(560px, 1fr) clamp(270px, 20vw, 300px) !important;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card { min-height: 0; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center { grid-column: 3; grid-row: 1; }

    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: clamp(300px, 22vw, 350px) minmax(600px, 1fr) clamp(280px, 21vw, 330px) !important;
    }
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2; grid-row: 1; }
    html[data-theme] body #chatBatchShell > .chat-generate-panel { grid-column: 3; grid-row: 1; }
}

@media (min-width: 781px) and (max-width: 1279px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(220px, .72fr) minmax(0, 1.45fr) !important;
        height: auto;
        overflow: visible;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel { grid-column: 1; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel { grid-column: 2 !important; grid-row: 1; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel {
        grid-column: 1 / -1;
        grid-row: 2;
        min-height: 0;
        border-top: 1px solid var(--hws-border);
        border-left: 0;
    }
}

@media (max-width: 780px) {
    html[data-theme] body .chat-workbench-toolbar { align-items: stretch; flex-direction: column; gap: var(--hws-space-3); }
    html[data-theme] body .chat-workbench-toolbar-actions { justify-content: space-between; }
    html[data-theme] body .chat-workbench-task-nav { display: flex; overflow-x: auto; scroll-snap-type: x proximity; }
    html[data-theme] body .chat-workbench-task-nav button { min-width: 96px; min-height: 44px; scroll-snap-align: start; }
    html[data-theme] body .chat-workbench-task-action { min-height: 44px; }
    html[data-theme] body .chat-workbench-chrome .chat-mode-switch { min-height: 52px; }
    html[data-theme] body .chat-workbench-chrome .chat-mode-btn { min-height: 44px; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-card :is(.apple-upload-btn, .chat-upload-history-btn),
    html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-upload-action-btn, .chat-context-help > summary),
    html[data-theme] body #chatBatchShell .batch-filter-row button { min-height: 44px; }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-result-info-row :is(.chat-result-detail-btn, .chat-result-compare-btn, .chat-result-thumb-download),
    html[data-theme] body #chatBatchShell #batchOutput .chat-result-info-row :is(.chat-result-detail-btn, .chat-result-compare-btn, .chat-result-thumb-download) {
        min-height: 44px;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench,
    html[data-theme] body #chatSingleShell.chat-desktop-workbench[data-workbench-phase],
    html[data-theme] body #chatBatchShell.chat-batch-shell {
        grid-template-columns: minmax(0, 1fr) !important;
        height: auto;
        overflow: visible;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench > .panel-card,
    html[data-theme] body #chatBatchShell.chat-batch-shell > .panel-card {
        min-height: 0;
        border-left: 0;
        border-top: 1px solid var(--hws-border);
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left,
    html[data-theme] body #chatBatchShell > .chat-input-panel {
        grid-column: 1 !important;
        grid-row: auto;
        order: 1;
        border-top: 0;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-results,
    html[data-theme] body #chatBatchShell > .chat-control-panel {
        grid-column: 1 !important;
        grid-row: auto;
        order: 2;
        min-height: 430px;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-center,
    html[data-theme] body #chatBatchShell > .chat-generate-panel {
        grid-column: 1 !important;
        grid-row: auto;
        order: 3;
        min-height: 0;
    }

    html[data-theme] body #chatBatchShell .chat-batch-match-row {
        grid-template-columns: 38px minmax(0, 1fr);
    }

    html[data-theme] body #chatBatchShell :is(.chat-batch-match-media, .chat-batch-prompt-preview, .chat-batch-match-status) {
        grid-column: 2;
        justify-self: flex-start;
    }
}

@media (max-width: 520px) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-toolbar {
        align-items: center;
        flex-direction: row;
        flex-wrap: nowrap;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-stage-hint {
        flex: 0 0 auto;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-actions {
        width: auto;
        min-width: 0;
        flex: 1;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        flex-direction: row;
    }
    html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-upload-action-btn {
        width: auto;
    }
}

html[data-theme] body :is(.chat-result-detail-panel, .chat-color-compare-panel) {
    box-shadow: 0 8px 24px color-mix(in oklab, #000 18%, transparent);
}

html[data-theme] body .workspace-gallery-card,
html[data-theme] body .workspace-gallery-card-modern {
    box-shadow: inset 0 1px 0 color-mix(in oklab, #fff 72%, transparent), 0 1px 2px color-mix(in oklab, var(--hws-foreground) 6%, transparent);
}

html[data-theme] body .workspace-gallery-thumb {
    aspect-ratio: auto;
}

html[data-theme] body .workspace-gallery-grid-modern[data-layout="dense"] .workspace-gallery-preview {
    aspect-ratio: auto;
}

html[data-theme] body .workspace-gallery-grid-modern[data-layout="dense"] .workspace-gallery-meta strong {
    min-height: 0;
}

html[data-theme] body .history-sidebar .history-card-thumb {
    object-fit: contain;
}

@media (max-width: 760px) {
    html[data-theme] body .chat-color-compare-tabs,
    html[data-theme] body .chat-color-compare-export {
        width: auto;
    }

    html[data-theme] body .chat-color-compare-tabs button,
    html[data-theme] body .chat-color-compare-export {
        flex: 0 0 auto;
    }
}

/* The left rail is a one-dimensional stack. Keep each section at its content
 * height so the prompt creator cannot collapse underneath the final prompt. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left-scroll {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-workbench-left-scroll > .chat-workbench-section {
    flex: 0 0 auto;
}

/* Final cascade owner for the shared prompt creator. */
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench {
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
    gap: 8px;
    min-height: 0;
    padding: 10px;
    overflow: visible;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench .chat-brief-head,
html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress,
html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-workbench > .chat-inline-hint {
    grid-column: 1;
    grid-row: auto;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench #chatPrompt.chat-supplemental-textarea {
    min-height: 62px;
    height: 62px;
    max-height: 120px;
    padding: 8px 9px;
    font-size: 12px;
    line-height: 19px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    margin: 0;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-enhance-btn, .chat-write-prompt-btn) {
    min-height: 40px !important;
    height: 40px !important;
    border-radius: var(--hws-radius-md) !important;
    font-size: 13px !important;
    line-height: 18px !important;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress {
    gap: 7px;
    padding: 9px 10px;
    font-size: 12px;
    line-height: 16px;
}

html[data-theme] body #chatSingleShell.chat-desktop-workbench .chat-prompt-progress-bar {
    height: 5px;
}

@media (max-width: 780px), (pointer: coarse) {
    html[data-theme] body #chatSingleShell.chat-desktop-workbench :is(.chat-enhance-btn, .chat-write-prompt-btn) {
        min-height: 44px !important;
        height: 44px !important;
    }
}